# Radiology Toolbox Pro vs CTisus iPearls

The clearest difference is review sentiment: CTisus iPearls at 100% against Radiology Toolbox Pro's 43%. CTisus iPearls also leads on in-app purchases (none vs 2) and ratings volume (42 vs 7). Radiology Toolbox Pro's advantage is rating (5.0 vs 4.7). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Radiology Toolbox Pro sells 2 in-app purchases, starting at $1.99 per month. CTisus iPearls asks for nothing beyond the download.

Radiology Toolbox Pro holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: CTisus iPearls has 42 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 43% of Radiology Toolbox Pro's written reviews are positive against 100% of CTisus iPearls's, so the app with the better star average is not the one people write more warmly about.

Radiology Toolbox Pro ships an update every 4 months, CTisus iPearls every 6 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Radiology Toolbox Pro | CTisus iPearls |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/radiology-toolbox-pro/id466281848/reviews)** | [4.7 (42 ratings)](https://appshunter.io/ios/app/ctisus-ipearls/id687350624/reviews) |
| Number of ratings | 7 | **42** |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 14 MB | 137 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Softcode Systems, Inc.](https://appshunter.io/developer/415176376) | [Elliot Fishman](https://appshunter.io/developer/399024444) |

## What reviewers say

### Radiology Toolbox Pro

[App page](https://appshunter.io/ios/app/radiology-toolbox-pro/id466281848)

This medical reference app provides radiologists, technologists, and students with essential tools. It includes diagrams, calculators, and clinical decision support for various imaging modalities. An optional upgrade unlocks dozens of advanced diagnostic criteria and future updates.

**Highlights:** Radiology references and diagrams, Clinical decision support tools, Calculators for various modalities, CT, MR, US, NM, X-Ray criteria, Pro upgrade for advanced features, Regular updates with new tools

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $17.99 | per year |


### CTisus iPearls

[App page](https://appshunter.io/ios/app/ctisus-ipearls/id687350624)

This app provides diagnostic radiologists with valuable insights and facts, known as "pearls," to aid in correct diagnoses and understanding of radiologic images. It organizes these pearls across 28 popular categories and includes a search feature for easy access to thousands of pieces of knowledge.

**Highlights:** Diagnostic radiology pearls, Thousands of insights, 28 popular categories, Search functionality, Radiologic image understanding

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Radiology Toolbox Pro free?

Radiology Toolbox Pro is free to download, with in-app purchases available.

### Is CTisus iPearls free?

CTisus iPearls is free to download, with no in-app purchases.

### Which has better reviews, Radiology Toolbox Pro or CTisus iPearls?

Radiology Toolbox Pro is rated higher. Radiology Toolbox Pro averages 5.0 out of 5 from 7 ratings, while CTisus iPearls averages 4.7 from 42 ratings.

### Do Radiology Toolbox Pro or CTisus iPearls have ads?

Neither Radiology Toolbox Pro nor CTisus iPearls shows ads.

### Which is updated more often, Radiology Toolbox Pro or CTisus iPearls?

Radiology Toolbox Pro ships an update every 4 months, and CTisus iPearls every 6 months. Most recently, Radiology Toolbox Pro was updated on November 1, 2026 and CTisus iPearls on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*